Rotary snowplow



' July 27, 1925. 1,593,585

J. s. M CALLUM ROTARY SNOWPLOW Filad July 14, 1924' 5 Sheets-S1165 1 ,Q Q a "5 g... \E

INVENT OR rfiJhnISM CaZZum ATTO RN EY July Mcc

ROTARY SNOWPLOW 3 Sheets-s 2 July 27 1926.

J. s. M CALLUM ROTARY SNOWPLOW WITNESSES X ATTORNEY Patented duly 27, 1926.

outrun STATES JJ'GEN S. MOCALLUM, OF GOLDFIELD, IOWA.

norms! sNowrLow' Application filed July 14, 1924. Serial No. 725,838.

This invention relates to an improved snow plow of the rotary type, particularly ada ted for use on highways.

T e general object of the invention is to provide an improved snow plow of simple construction, yet durable and practical, and comprising mechanism which may be erated while being propelled along the highway, so as to remove the snow therefrom,

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leaving the surface practically clear for trafic, and preventing the damage which would result from subsequent melting and freezing.

The invention is preferably in the form of a self-contained unit rovided with a rear- Wardly extending us tongue, which may be coupled to the ront end of a tractor or similar vehicle, and propelled thereby. The rotatable member is mounted within a casing, and the snow is fed thereto by means of forwardly projecting hinged scoop, which is suitably braced and may be raised and lowered according to local conditions, the casing being provided with a laterally extending mouththrough which the snow is delivered to one side of the road.

The various details of construction and the arrangement of the various parts which constitute the invention will be more fully explained in connection with the accompanying drawings, which illustrate the 1n vention in its preferred form.

In the drawings:

Figure 1 is a side elevation of the invention.

Figure 2 is a horizontal section through the casin which houses the rotary element, the remainder of the device being shown in plan view.

a Figure 3 is a side elevation of the lower part of the device, parts being broken away and shown in section.

Figure 4 is a front elevation of the rotary element and the arts associated therewith.

Figure 5 is a fi'agmentary sectional view of the rotary element and its housing.

Figure 6 is a detail perspective view of one of the cups or shovels.

The invention comprises a rugged" frame 10, of any suitable construction, mounted on a pair of truck wheels 11, and having a rearwardly extending push tongue 12 adapted to be coupled to the front end of a tractor, or other vehicle suitable for propelling the low overthe road. As herein shown, the rame includes a pair of upright posts 13 secured in rigid relation to the main frame by braces 14. Firmly secured to the front sides of these posts is a cylindrical housing 15, within which the rotary element is sup orted on a shaft 16 mounted for rotation in bearings 17 and 18, and having its rear end journaled in bearings 19 supported from the main frame.

1 The rotary element is in the shape of a wheel having concentric rims 20 and 21 supported by radial spokes 22 and forwardly converging braces 23. The wheel carries a seriesof cups or shovels 24, equally spaced about the periphery of the wheel. Each of these cups or shovels is substantially semi cylindrical in shape, with its concave side disposed in the direction of rotation, and is secured to the rims 20 and 21 and provided with suitable braces 25 and 26, so as'to form a strong and rigid construction; The housing 15 has a comparatively large 0 ening 27 midway of one side, from w ich leads a mouth or laterally disposed chute 28, from which the snow is delivered to one side of the roadway. The diameter of the housing 15 will usually be about twelve feet and the height of the opening 27 measured circumferentially of the housing, will be about five. feet, but these dimensions, of course, ma be varied. i

The she 16 is rotated in a direction to carry the shovels 24 from the lowermost point of the housing upwardly toward the mouth 28, and the centrifugal force expels the snow therefrom. A suitable power unit for driving the shaft 16 may be supported upon the main frame 10. In the present construction, I have provided two gasoline motors, illustrated conventionally at 29, and each provided with a drive shaft 30 journaled at its forward end, as at 31, in the housing 15, and rovided with a pinion 32 which meshes wit a gear 33 carried b the shaft 16. This is, however, merely 11lustrative, and any other desired motor power may be used.

The scoop 34 is him ed, as at 35, near the lower front edge of t e casing 15 and extends forwardly therefrom. A plurality of bars 36 are secured to the main frame, and

extend forwardly beneath the scoop, and

same upwardly about the hinges 35. In working on smooth surfaced roads the scoop will ordinarily be left in its lowermost position, but on gravel or dirt roads havmg an uneven surface, the scoo maybe raised a sufficient distance to obtain the best results. In determining the position of the ad us ting levers 37, they are connected at their rear ends by links 39 to cranks 40, formed on a transverse crank shaft 41 suitably journaled on the main frame. Th1s crank shaft is provided at one end with a worm gear 42 in mesh with a worm 43 formed on a vertical shaft 44', which is provided at 1ts u per end with a hand wheel 45, by means of which the crank shaft may be rocked to raise or lower the scoop. In the operation of the invention, the same is attached to the front end of a tractor, or other vehicles, as explained above, and is driven over the highway. The rotary element may be independently driven at any desired speed, which may be necessary in order to properl dispose of the snow. The lower portion 0 the front side of the housing 15 is open, so that as the plow moves forwardl the snow riding up on the scoop 34 into t e housing is cut by the shovels 24, and is carried upwardly toward the opening 27. The wheel is rotated with sufficient speed, so that the snow, as it arrives at the o ening 27, is discharged laterally between the sides of the chute 28 and is thrown to one side of the roadway.

While I have shown and described specifically one form in which the invention may be embodied, it is to be understood that various modifications may be made without departing from the salient features of the invention, and it is my purpose therefore to include all such modifications within the scope of the appended claims.

What is claimed is:

1.'In a snow low, the combination of a frame provided with supporting truck wheels and adapted to be attached to the frontend of a tractor or the like, a cylindrical housing supported at the front end of. the frame and having the lower portion of its front face open, a'forwardly extending scoop hinged to the lower side of the housing and leading to said opening, bars secured to the frame and projecting forwardly beneath the scoo said scoop being free to swing upwar ly butpositively limited in its downward movement by said bars, a rotatable element within the housing having radially mounted shovels thereon, and a chute leading from the side of the housing.

2. In a snow plow, the combination of a wheeled frame, a cylindrical housing supported at the front end of the frame and aving an opening in the lower part of its front face, a rotatable element within the 3. 'In a snow plow, the combination of a wheeled frame, a cylindrical housing supported at the front end of the frame and having an opening in the lower part of its front face, a chute leading laterally from.

said housing, a rotatable element within the housing having radially mounted shovels thereon, a scoop hinged to the housing beneath said opening and extending forwardly, bars secured to the frame and projecting forwardly beneath the $000 said scoop being free to swing upward y, but positively limited in its downward movement by said bars, and means for adjusting the scoop vertically away from said bars.

4. In a snow plow, the combination of a wheeled frame, a cylindrical housing supported at the front end of the frame and having an opening in the lower part of its front face, a chute leading laterally from said housing, a rotatable element within the housing having radially mounted shovels thereon, a forwardly proJecting scoop hinged to the housing and leading to said opening, bars secured to the frame and projectin forwardly beneath the scoop, said scoop being free to swing upwardly, but positively limited in its downward movement b said bars, intermediately pivoted levers a o extending forwardly beneath the scoop, and adjusting means connected to the rear ends of said levers and movable downwardly to raise the forward ends of the levers and thereby raise the scoop.

5. In a snow plow, the combination of a frame, truck wheels supporting the same, a rearwardly extending push tongue by means of which the frame may be r0 elled and guided over the highway, a cy in rical housing supported at thefront end of the frame and having the lower portion of its front face open, a forwardly projecting hinged scoop leading to the opening, bars secured to the frame and projecting forwardly beneath the scoop, said scoop being free to swing upwardly, but positively limited in its downward movement by said bars, a shaft journaled axially of said housing, a wheel secured to the shaft within the housing and aving radially mounted shovels thereon, a chute leading from the side of the housing, and independent power means carried by said frame for rotating said shaft.

3. 1 a snow plow, the combination of a wheeled housing supp 's end of the frame and having an opening in the lower part of its front face, a chute extending laterally from the housing, a scoop hinged to the lower side of the housing and leading to said opening, a rotatable element within the housing having means for receiving snow from. said scoop and deliverin it to the chute, bars secured to the frame an d projecting forwardly beneath the scoop and normally supporting the same, intermediately iulcrumed levers also projecting forwardly beneath the scoop, links connected one end to the rear ends of the levers, a crank shaft connected to the other ends of the links, and rotatable hand operated means geared to said crank shaft and operable to reel: the same to swing the levers about their fulcrum to adjust said scoop about its hinged srrrogport,

7. in a snow plow, the combination of a wheeled frame, a cylindrical housing supported at the front end of the frame and having an opening in the lower part of its front face, a chute leading laterally from the housing, means for directing snow into said opening as the frame is propelled forwardly, a

shaft journaled axially of said housing, a wheel secured to said shaft and including a plurality of radial spokes, a air of concentrio rings secured to said spo es, forwardly converging braces secured to said rings, and a plurality of radially disposed shovels secured to said rings.

8. In a snow plow, the combination of a wheeled frame, a cylindrical housing supported at the front end of the frame and having an opening in the lower part of its front face, a forwardly projecting hinged scoop beneath'the opening, a discharge chute leading from the side of the housing, a shaft mounted axially of the housing, a wheel secured to said shaft and including a plurality of concentric rings, radial spokeson which the rings are supported, and a series of radially disposed shovels secured to said rings, each of said shovels being substantially semi-cylindrical in shape with its concave face disposed in the direction of rotation.

In testimony that I claim the foregoing as my own, I have hereto aifixed my signature JOHN. S. MoCALLUM. 

